-
公开(公告)号：US20230369590A1
公开(公告)日：2023-11-16
申请号：US18348729
申请日：2023-07-07
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Lili WU , Peidong SONG , Xin SUN , Liang YUN , Xingbu CHEN , Miaomiao DONG , Xuan LI
CPC classification number: H01M4/583 , H01M4/661 , H01M4/0404 , H01M2220/20 , H01M2004/021
Abstract: A secondary battery includes a negative electrode plate. A negative electrode active material layer of the negative electrode plate includes a porous carbon material. The negative electrode active material layer has a pore. The pore runs through or not through the negative electrode active material layer. Lithium metal is present in the pore.
-
2.发明申请公开(公告)号：US20220367871A1
公开(公告)日：2022-11-17
申请号：US17874548
申请日：2022-07-27
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Xingbu CHEN , Xin SUN , Xiao CHEN , Zhenglun CHEN , Haotian XIE , Bangrun WANG , Geng LI
IPC: H01M4/525 , H01M10/0525 , H01M4/505 , H01M4/587 , H01M10/0567 , H01M4/58
Abstract: A secondary battery includes a positive electrode, a negative electrode, and an electrolyte. The positive electrode includes a positive-electrode active substance layer, the positive-electrode active substance layer contains a pre-lithiation agent, and a molecular formula of the pre-lithiation agent is LixNiaCu1−a−bMbO2, where 1≤x≤2, 0
-
公开(公告)号：US20240363858A1
公开(公告)日：2024-10-31
申请号：US18767006
申请日：2024-07-09
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Miaomiao DONG , Shaocong OUYANG , Changfeng BIE , Hongyu LIU , Huan NI , Chenghua FU , Xin SUN
CPC classification number: H01M4/5825 , H01M4/364 , H01M4/366 , H01M4/382 , H01M4/60 , H01M10/0525 , H01M2004/027 , H01M2004/028
Abstract: The present application provides a secondary battery, a battery module, a battery pack, and an electrical device. The secondary battery includes a positive electrode plate, a negative electrode plate, and a separator disposed between the positive electrode plate and the negative electrode plate, in which the positive electrode plate comprises a positive electrode coating containing a positive electrode active material comprising a lithium iron phosphate material and a conjugated carbonyl compound. In a discharge process of the secondary battery, in addition to a discharge plateau of the lithium iron phosphate material, a discharge curve further includes a relatively low discharge plateau provided by the conjugated carbonyl compound.
-
公开(公告)号：US20240194889A1
公开(公告)日：2024-06-13
申请号：US18411968
申请日：2024-01-12
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Peidong SONG , Xuan LI , Xin SUN , Lili WU , Xingbu CHEN , Liang YUN , Miaomiao DONG
IPC: H01M4/62 , H01M4/02 , H01M4/04 , H01M4/131 , H01M4/133 , H01M4/1391 , H01M4/1393 , H01M4/36 , H01M4/48 , H01M4/52 , H01M4/587
CPC classification number: H01M4/628 , H01M4/0404 , H01M4/131 , H01M4/133 , H01M4/1391 , H01M4/1393 , H01M4/366 , H01M4/48 , H01M4/52 , H01M4/587 , H01M2004/021 , H01M2004/027
Abstract: A negative electrode plate for a secondary battery and a preparation method therefor, and a secondary battery comprising the negative electrode plate, a battery module, a battery pack, and a power consuming device are described. The composite lithium metal negative electrode plate of the present application comprises a current collector and an active substance layer coated on at least one surface of the current collector, wherein the active substance layer comprises an active substance and a lithiophilic material having a core-shell structure, and the core of the lithiophilic material contains a lithiophilic substance and the shell thereof is a carbon material.
-
公开(公告)号：US20240145793A1
公开(公告)日：2024-05-02
申请号：US18525335
申请日：2023-11-30
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Haotian XIE , Xin SUN , Yongshou LIN
IPC: H01M10/42 , H01M4/131 , H01M4/58 , H01M10/0525
CPC classification number: H01M10/4235 , H01M4/131 , H01M4/5825 , H01M10/0525 , H01M2004/028
Abstract: A secondary battery includes a positive electrode plate and an electrolyte solution. The positive electrode plate includes a positive current collector and a positive electrode film provided on at least one surface of the positive current collector. The positive electrode film includes a positive electrode active material and a lithium supplement. The lithium supplement includes at least one of substances represented by formula (I) below, and the positive electrode film and/or electrolyte solution comprises one or more nitrone derivatives, a molecule of each of which includes a structure represented by formula (II) below:
-
Patent Agency Ranking
公开(公告)号：US20240363844A1
公开(公告)日：2024-10-31
申请号：US18771103
申请日：2024-07-12
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Nannan ZHANG , Xin SUN , Xiao CHEN , Haotian XIE , Donghao WANG , Erdong JING
CPC classification number: H01M4/366 , H01M4/131 , H01M4/485 , H01M2004/021 , H01M2004/028
Abstract: A positive electrode pre-lithiation reagent, which includes an inner core and a coating layer is described. The inner core includes a lithium-rich metal oxide; the coating layer covers the surface of the inner core and includes a conductive polymer and a low surface energy material. The surface energy of the low surface energy material is 10 mJ/m2 to 35 mJ/m2, optionally 10 mJ/m2 to 22 mJ/m2.
-
公开(公告)号：US20240120497A1
公开(公告)日：2024-04-11
申请号：US18386606
申请日：2023-11-03
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Xin SUN , Huanji LIU , Xiao CHEN , Ziyi YIN , Haizu JIN
IPC: H01M4/66 , H01M4/04 , H01M10/04 , H01M50/103 , H01M50/209 , H01M50/249
CPC classification number: H01M4/662 , H01M4/0404 , H01M10/0413 , H01M50/103 , H01M50/209 , H01M50/249 , H01M2004/021
Abstract: The present application relates to a current collector, an electrode plate, a battery cell, a battery, and an electric device. The current collector includes a stainless steel current-collecting portion for collecting a current, where the stainless steel current-collecting portion includes a blank area and a coating area that are arranged adjacent to each other in a preset direction, the coating area is configured to be coated with an active material, and the blank area has a hardness less than that of the coating area.
-
公开(公告)号：US20230395875A1
公开(公告)日：2023-12-07
申请号：US18446063
申请日：2023-08-08
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Xin SUN , Haotian XIE , Bangrun WANG
IPC: H01M10/42 , H01M4/58 , H01M4/62 , C08F114/22
CPC classification number: H01M10/4235 , H01M4/5825 , H01M4/623 , C08F114/22 , H01M2004/028
Abstract: A positive electrode slurry composition, and a positive electrode sheet prepared thereof, a secondary battery, a battery module, a battery pack and a power consumption apparatus are described. The positive electrode slurry composition includes a positive electrode active material, a pre-lithiation material, and a binder, where the binder is shown in Formula (II)
where R1, R2, x, y, and z have meanings defined in the specification, a volume average particle size is D10≥0.3 μm, a volume average particle size D50 is 0.5-10 μm. The positive electrode slurry composition includes the binder in Formula (II) and the positive electrode active material with a specific particle size range, which is not easy to agglomerate and has high stability, and is conducive to improving machinability of the positive electrode sheet, and the binder in Formula (II) is conducive to improving bonding strength between the positive electrode active material and the pre-lithiation material.-
公开(公告)号：US20230395776A1
公开(公告)日：2023-12-07
申请号：US18448907
申请日：2023-08-12
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
IPC: H01M4/133 , H01M10/0525 , H01M4/36 , H01M4/587
CPC classification number: H01M4/133 , H01M10/0525 , H01M4/366 , H01M4/587 , H01M2220/20 , H01M2004/027
Abstract: A lithium-ion battery includes a negative electrode including a current collector, a lithiophilic layer, a main body layer, and a lithiophobic layer laminated in sequence. A ratio of a discharge negative electrode capacity to a discharge positive electrode capacity of the lithium-ion battery is less than 1.
-
10.发明公开公开(公告)号：US20240250268A1
公开(公告)日：2024-07-25
申请号：US18625656
申请日：2024-04-03
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Xingbu CHEN , Lili WU , Xin SUN , Xuan Ll , Miaomiao DONG , Peidong SONG , Liang YUN
CPC classification number: H01M4/628 , H01M4/13 , H01M2004/021 , H01M2004/027
Abstract: A negative electrode plate, an electrode assembly, a battery cell, a battery, and an electrical device are disclosed. The negative electrode plate includes: a negative current collector and a negative active material layer disposed on the negative current collector. A plurality of pore channels are disposed in the negative active material layer. The technical solution of this application reduces lithium plating on a surface of the negative electrode plate, and reduces the possibility of lithium dendrites growing and piercing the separator, thereby enhancing reliability of the battery.
-
-
-
-
-
-
-
-
-
Search Results
22
records
(took 0.017 seconds)
